A system and method are described for n alternate mobile payment service. The system includes a server computer for enrolling and storing user account information. The server computer is also capable of generating a unique one-time-use identifier for use during a transaction. The one-time-use identifier is returned to user as an electronic coupon which may be in the form of a two-dimensional barcode. The coupon may be used at a merchant location to complete a transaction. When the barcode is scanned it may processed similar to a credit/debit/prepaid card payment.